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Introduction to Chemistry: Key Concepts and Problem-Solving Guidance (Modules 1–3)

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The Scientific Method

  • Guided course
    The Scientific Method Concept 1
    01:59
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    The Scientific Method Concept 2
    01:38
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    The Scientific Method Example 1
    00:46

Scientific Notation

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    Scientific Notation
    02:50
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    Scientific Notation
    01:41
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    Scientific Notation Example 1
    01:53

Significant Figures (Simplified)

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    Significant Figures (Simplified) Example 2
    01:09
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    Significant Figures (Simplified) Example 1
    00:58
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    Significant Figures (Simplified) Concept 2
    04:40

Significant Figures: Precision in Measurements

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    Significant Figures Precision Concept
    01:49
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    Significant Figures Precision Example
    01:35

Significant Figures: In Calculations

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    Significant Figures Calculations Concept 3
    03:32
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    Significant Figures Calculations Concept 2
    01:42
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    Significant Figures Calculations Concept 1
    03:11

SI Units (Simplified)

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    SI Units (Simplified) Example 1
    00:42
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    SI Units (Simplified) Concept 1
    02:19

Metric Prefixes

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    Metric Prefixes
    03:59
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    Metric Prefixes
    01:16
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    Metric Prefixes Example 1
    03:37

Conversion Factors (Simplified)

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    Conversion Factors (Simplified) Example 2
    03:45
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    Conversion Factors (Simplified) Example 1
    02:12
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    Conversion Factors (Simplified) Concept 1
    01:56

Density

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    Density
    01:56
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    Density Example 1
    05:30

Classification of Matter

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    Classification of Matter
    01:34
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    Classification of Matter
    04:19
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    Classification of Matter Example 1
    02:58

States of Matter

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    States of Matter Concept 1
    01:35
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    States of Matter Example 1
    01:01
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    States of Matter Concept 2
    02:23

Physical & Chemical Changes

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    Physical & Chemical Changes Example 2
    01:52
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    Reversible Changes in Matter
    03:42
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    Physical & Chemical Changes Example 1
    01:52

Chemical Properties

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    Chemical Properties Example 1
    02:17
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    Chemical Properties Concept
    04:22

Physical Properties

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    Physical Properties Concept
    02:54
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    Physical Properties Example
    01:41

Temperature (Simplified)

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    Temperature (Simplified) Example 2
    02:10
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    Temperature (Simplified) Concept 1
    01:30
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    Temperature (Simplified) Concept 2
    02:03

Nature of Energy

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    Nature of Energy
    01:26
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    Nature of Energy Example 1
    01:32
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    Nature of Energy
    01:14

Endothermic & Exothermic Reactions

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    Endothermic & Exothermic Reactions Example 2
    1:48
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    Endothermic & Exothermic Reactions
    02:38
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    Endothermic & Exothermic Reactions
    02:30

Heat Capacity

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    Heat Capacity
    00:44
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    Heat Capacity Example 3
    02:08
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    Heat Capacity Example 2
    01:47

The Atom (Simplified)

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    The Atom (Simplified) Concept 2
    02:53
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    The Atom (Simplified) Concept 1
    01:44
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    The Atom (Simplified) Example 1
    02:52

Subatomic Particles (Simplified)

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    Subatomic Particles (Simplified) Concept 1
    01:25
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    Subatomic Particles (Simplified) Concept 2
    02:36
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    Subatomic Particles (Simplified) Example 1
    03:31

Isotopes

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    Isotopes
    04:36
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    Isotopes Example 1
    03:57

Ions (Simplified)

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    Ions (Simplified) Concept 1
    00:53
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    Ions (Simplified) Concept 2
    01:59
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    Ions (Simplified) Example 1
    02:22

Atomic Mass (Simplified)

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    Atomic Mass (Simplified) Concept 2
    01:51
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    Atomic Mass (Conceptual) Concept 1
    01:13
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    Atomic Mass (Conceptual) Example 1
    02:06

Periodic Table: Element Symbols

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    Periodic Table: Symbols Concept
    04:01
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    Periodic Table: Symbols Example 1
    01:01

Periodic Table: Classifications

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    Periodic Table: Classifications
    01:12
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    Periodic Table: Classifications
    02:40
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    Periodic Table: Classifications
    03:37

Periodic Table: Group Names

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    Periodic Table: Group Names
    05:33
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    Periodic Table: Group Names Example 1
    01:17

Periodic Table: Representative Elements & Transition Metals

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    Periodic Table: Representative Elements & Transition Metals Example 1
    01:23
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    Periodic Table: Representative Elements & Transition Metals
    03:30

Periodic Table: Main Group Element Charges

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    Periodic Table: Main Group Element Charges Example 1
    01:52
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    Periodic Table: Main Group Element Charges Concept 2
    07:38
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    Periodic Table: Main Group Element Charges Example 2
    00:48

Atomic Theory

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    Atomic Theory
    05:22
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    Atomic Theory Example 1
    01:48

Rutherford Gold Foil Experiment

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    Rutherford Gold Foil Oil Experiment
    01:40
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    Rutherford Gold Foil Oil Experiment Example 2
    01:53
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    Rutherford Gold Foil Oil Experiment
    04:22

Lewis Dot Symbols (Simplified)

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    Lewis Dot Symbols (Simplified) Example 1
    00:50
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    Lewis Dot Symbols (Simplified) Concept 1
    00:52
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    Lewis Dot Symbols (Simplified) Example 2
    01:18

Ionic Bonding

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    Ionic Bonding Example 2
    01:06
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    Ionic Bonding Example 1
    01:16
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    Ionic Bonding Concept 1
    02:33

Covalent Bonds

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    Covalent Bonds Example 1
    01:18
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    Covalent Bonds Example 2
    01:13
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    Covalent Bonds Concept 3
    00:46

Lewis Dot Structures: Neutral Compounds (Simplified)

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    Lewis Dot Structures: Neutral Compounds (Simplified) Example 1
    02:49
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    Lewis Dot Structures: Neutral Compounds (Simplified) Concept 1
    00:37

Valence Electrons of Elements (Simplified)

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    Valence Electrons of Elements (Simplified) Example 1
    01:14
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    Valence Electrons of Elements (Simplified) Concept 1
    01:55

Electron Geometry (Simplified)

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    Electron Geometry (Simplified) Example 1
    00:45
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    Electron Geometry (Simplified) Example 2
    01:50
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    Electron Geometry (Simplified) Concept 1
    02:25

Molecular Geometry (Simplified)

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    Molecular Geometry (Simplified) Example 2
    01:41
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    Molecular Geometry (Simplified) Concept 2
    02:03
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    Molecular Geometry (Simplified) Example 1
    01:32